Onion for Nausea & Vomiting: Does It Work?
Does Onion (Palandu) help with nausea and vomiting (Chardi)? In Ayurvedic kitchen-pharmacy tradition, yes, as a simple home remedy. The recorded remedy is not onion on its own but a small mixture of fresh onion juice and fresh ginger juice, which is said to help settle the stomach.
Ayurvedic tradition lists onion as an appetizer (Deepana), a substance that kindles digestive fire (Agni), the body's power to digest and transform food. The Bhavaprakash Nighantu, Varga 1 records this action, and tradition connects onion with both indigestion and nausea.
Onion is not a fit for every kind of nausea. It is heating, and the Ashtanga Hridaya notes that it increases Pitta, the hot, sharp dosha that Ayurveda links most closely with nausea. So the juice remedy is a short-term kitchen measure, not a daily tonic.
How Onion Helps with Nausea & Vomiting
Raw onion is pungent (Katu), sharp (Tikshna) and heating (Ushna Virya), and it soothes Kapha, the heavy, slow dosha. Ayurveda describes a Kapha type of vomiting (Kaphaja Chardi) that follows overeating or heavy, oily food and feels like fullness and heaviness. Onion's pungent, appetizing qualities work against that heavy, stagnant picture.
Ayurveda also teaches that nausea and vomiting often reflect high Pitta in the stomach, with excess acid irritating the stomach lining. Onion increases Pitta, so it does not suit the burning type of nausea (Pittaja Chardi), with a sour or bitter taste and yellowish vomit. Raw onion also aggravates Vata, the dosha behind dry heaving and anxious, travel-related nausea.
That is why the traditional remedy pairs onion with ginger rather than using it alone. Ginger is one of the herbs Ayurveda names most often for nausea, and the two juices are taken together in small amounts. Our sources contain no clinical research on onion for nausea.
How to Use Onion for Nausea & Vomiting
The form tradition records for nausea is fresh juice, taken in a teaspoon-sized amount alongside fresh ginger. Cooked onion turns sweet and loses the pungency that gives the raw juice its appetizing action.
| Form | Amount | How to take it |
|---|---|---|
| Fresh onion juice with fresh ginger juice | 1 tsp onion juice and 1 tsp ginger juice (or freshly grated ginger pulp) | Mixed together and taken to settle nausea and vomiting |
Partner ingredient
Ginger serves as the partner ingredient here. Ayurveda calls a partner like this the anupana, the vehicle a remedy is taken with to steer its effect.
Timing and duration
Our sources do not give a set number of doses per day or a course length for this remedy. Treat it as an occasional kitchen measure for a passing bout of nausea, not a long-term routine.
Alongside any remedy, Ayurvedic tradition advises a Pitta-soothing diet during nausea, avoiding hot, spicy and fermented food, and taking small, frequent sips of fluid to stay hydrated.
Frequently Asked Questions
Can I use cooked onion for nausea?
The traditional nausea remedy uses fresh raw onion juice. Cooked onion is sweet and heavy, so it lacks the pungent, appetizing quality the remedy relies on.
Is onion right for every type of nausea?
No. Onion is heating and increases Pitta, so it is a poor fit for burning nausea with a sour or bitter taste. Its pungent, Kapha-soothing nature fits heavy, overfull nausea better.
Onion vs ginger for nausea and vomiting?
Ginger is used for nausea on its own and is the more widely used remedy. The onion remedy actually includes ginger juice. See Ginger for Nausea and Vomiting.
Recommended: Start Onion for Nausea & Vomiting
If you want to try onion for nausea today, here is the simplest starting point from Ayurvedic tradition.
Best form: fresh juice. Raw onion juice keeps the pungent, digestion-kindling quality that cooked onion loses.
Kitchen version: Grate or crush a small piece of onion and squeeze out 1 teaspoon of juice. Mix it with 1 teaspoon of fresh ginger juice or freshly grated ginger pulp.
Match the type: This suits heavy, overfull nausea. If your nausea comes with burning, acidity or a sour taste, choose a cooling remedy such as rose or cardamom instead.
Find Onion on Amazon ↗ Find Ginger Juice on Amazon ↗
If you are pregnant, tell your obstetric provider before using any herbal remedy, and seek medical care for blood in vomit, signs of dehydration, or vomiting that lasts beyond 24 hours.
Safety & Precautions
As a common food, onion is familiar and widely eaten. The cautions Ayurveda raises are about heat and about which form you use.
Pitta and heat
Onion has a heating potency, and both raw and cooked onion can aggravate Pitta, the dosha of heat and metabolism, when taken in quantity. The Ashtanga Hridaya also notes that onion increases Pitta. If you run hot or are prone to acidity, flushing or inflammation, keep amounts modest and favor cooked onion.
Raw onion and Vata
Raw onion aggravates Vata, the dosha of movement and dryness, even though cooked onion calms it. If you tend toward Vata imbalance, use onion cooked rather than raw.
First-aid uses need medical backup
Onion's traditional roles in fainting, convulsions and fever are first-aid measures for the moment, not treatments for the cause. Any fainting episode with chest pain or palpitations, any seizure, and any fainting that does not resolve within a minute or two needs prompt medical care.
The texts in our records do not address specific drug interactions, pregnancy or overdose. If you are pregnant, nursing, on medication, or planning to take onion juice daily as a remedy, check with a qualified practitioner first.
Other Herbs for Nausea & Vomiting
See all herbs for nausea & vomiting on the Nausea & Vomiting page.
▶ Classical Text References (3 sources)
109-111 पला डु ता गुण यूनः ले मलो ना त प तलः Palandu (onion) is inferior in the above qualities, increases of pitta.
— Astanga Hridaya Sutrasthan, Annaswaroopa Food
Source: Astanga Hridaya Sutrasthan, Annaswaroopa Food
Onion cooked with butter-milk or upodika along with badaramla (sour vinegar prepared of badara) or the soup of masura made sour by adding butter-milk should be given in bleeding hemorrhoids.
— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 14: Hemorrhoids Treatment (Arsha Chikitsa / अर्शचिकित्सा)
Onion taken alone or along with meat soup, khada (pungent drink), yusha (vegetable soup) and yavngu (thick gruel) cures excessive bleeding and aggravated vata.
— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 14: Hemorrhoids Treatment (Arsha Chikitsa / अर्शचिकित्सा)
Large quantity of onion cooked with the trunk of a young goat should be given by adding alternatively, sweet and sour ingredients if there is diminution of stool and blood.
— Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 14: Hemorrhoids Treatment (Arsha Chikitsa / अर्शचिकित्सा)
Source: Charaka Samhita, Chikitsa Sthana — Therapeutic Principles, Chapter 14: Hemorrhoids Treatment (Arsha Chikitsa / अर्शचिकित्सा)
Trikatu (three pungents), palandu (onion), madhuka (licorice), the best salt, lac with gairika (red ochre) as collyrium pills;
— Sushruta Samhita, Uttara Tantra, Chapter 19: Chapter 19
Source: Sushruta Samhita, Uttara Tantra, Chapter 19: Chapter 19
Medical Disclaimer: The information on this page is for educational purposes only and is not intended as medical advice. Ayurvedic treatments should be pursued under the guidance of a qualified practitioner (BAMS/MD Ayurveda). Always consult your healthcare provider before starting any new treatment. Content is sourced from classical Ayurvedic texts and may not reflect the latest medical research.